Author: Vincent Diepeveen
Date: 04:09:24 03/28/01
Go up one level in this thread
On March 27, 2001 at 18:23:26, Christophe Theron wrote: >On March 27, 2001 at 15:00:51, Vincent Diepeveen wrote: > >>On March 27, 2001 at 14:06:03, Victor Zakharov wrote: >> >>>>>1) Two processors give 70% speed increase for chess program. Ok. >>>>> But doubling processor speed doesn't speed up computer 2 times too. >>>>> I suspect that speedup is about 70% for most programs too. >>>>> Memory system speed limits speedup. >>>>> May be some people here have benchmarks under their hands and can say >>>>> more exact number. But I am sure that speedup is strongly less than 100% >>>> >>>> >>>> >>>>I hope some people with fast and slow computers will read this and will post >>>>their benchmarks. >>>> >>>>In particular we are very interested in benchmarks for the Athlon 600MHz and the >>>>Athlon 1.2GHz. >>> >>> >>>I hope that there are persons here that will be able to compare nps for some >>>chess programs at Athlon 600MHz and Athlon 1.2GHz. It is essential that >>>conditions were equal. For example, hash size is 64MB and start position. Also >>>it is a good idea about equal motherboard and memory speed (PC133 or PC100). >>> >>> >>>>>2) So the queston is only what is cheaper to buy the processor that >>>>> is two times faster or to buy a second processor. >>>>> For my mind two processors are cheaper. Sure you should have the adequite >>>>> motherboard. >>>>> >>>>> The only problem is that not all the programs support 2 processors. >>>>> But there is another side of the medal. If you run some process on the >>>>> 1 processor computer it uses most processors resources and it is not easy >>>>> to do something else. With two processors you have no this problem. >>>>> >>>>>So personaly I am using two processor board with great pleasure. >>>> >>>> >>>> >>>>That's something else. In my message I try to compute the difference in ELO >>>>between singles and duals, given the compromises you have to do to in order to >>>>get a dual. >>> >>>There are two problems here. >>> >>>1) Sure it is not reasonable to waste a lot of money for fastest available >>>system. You will not reach too much in chess with it. It is better to buy the >>>strongest program :-). >>> >>>2) If we consider two processors system and one processor system with the same >>>power the question what is cheaper? >> >>The problem is even worse. There are no 2Ghz AMD processors >>and there are no 2 Ghz PIII processors yet, so the only option is >>to buy a dual!!!!! >> >>>I think that for high end systems two processors system is cheaper. For example >>>system with ABIT VP6 motherboard and two PIII-1GHz is cheaper and faster than >>>any P-IV system. And it $300 more expensive that is the one processor 1GHz >>>system. >> >>Talking about price is not relevant here. >> >>Some people buy expensive ferrari but are not allowed to drive faster >>on the highway as i am allowed with my car. >> >>The real problem here is that Christophe tries to defend the statement >>that duals are not worth buying, which is essential the same statement as >>saying that buying a faster single cpu is not worth buying! > > > >Can you quote a single sentence in my original message that says that duals are >not worth buying? > >No you can't. > >What I notice is that you conclude this yourself from what I have written. ;) > >On my side, I have just written that by buying a dual you will get, if you have >a SMP chess program, 25 additional elo points, unless you are ready to pay for a >really bigger amount of money. And that 25 elo points means winning 3.5 >additional games out of 100. > >From this you conclude that buying a dual is not worth it. Your words. > >I have only given some hard facts for people considering to buy one. So they >understand what they get for their money. So basically you conclude that ChessTiger gets 25 points extra from faster hardware. That means that Tiger is real soon outdated compared to competition which has already 3300 rating at ICC? > > > Christophe
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